M177 Crate Engine Build — Complete 4.0L Twin-Turbo V8 Long Block for C63, E63 & GT63 AMG
The Mercedes-AMG M177 is the workhorse of AMG's modern lineup — a 3,982 cc twin-turbo V8 with the now-legendary hot-inside-V turbo layout. It powers the C63 AMG (W205), E63 AMG (W213), AMG GT 63, GLC63, GLE63, and more. At YPG Motorsport, we build complete M177 crate engines with forged internals, race-spec tolerances, and the hardware to support 1,500 HP+ with upgraded turbochargers.
What Is an M177 Crate Engine?
A crate engine — also known as a long block — is a fully assembled engine ready to install. Our M177 crate engines include the complete rotating assembly (forged crankshaft, forged H-beam connecting rods, forged pistons), CNC-ported cylinder heads with upgraded valvetrain, all internal bearings, seals, and gaskets. Bolt on your turbos, accessories, and wiring — and go.
This is the definitive upgrade for anyone building serious power on the M177 platform. No core exchange required. Built fresh, shipped worldwide.
M177 Crate Engine Specifications
| Parameter | Specification |
|---|---|
| Displacement | 3,982 cc (4.0L) |
| Configuration | 90° V8, DOHC, 32-valve, twin-turbo |
| Turbo layout | Hot-inside-V (wet sump) |
| Block | Aluminium alloy, sleeved |
| Crankshaft | Forged billet steel |
| Connecting rods | Forged 4340 H-beam |
| Pistons | Forged aluminium, coated skirts, low compression for boost |
| Cylinder heads | CNC-ported, upgraded valves & springs |
| Potential | 1,500 HP+ capable with upgraded turbos |
| Application | Race / off-road use |
| Build time | 7–21 days |
| Shipping | FedEx / DHL worldwide to door |
Who Orders an M177 Crate Engine?
Owners of the C63 AMG W205, E63 AMG W213, AMG GT 63, GLC63, GLE63, and other M177-equipped chassis who are pushing past the limits of stock internals. The factory M177 bottom end starts showing its limits around 700–800 HP — above that, forged internals are not optional, they are mandatory. Our crate engine eliminates the risk and gives you a proven foundation for four-figure power.
M177 vs M178 — Which Engine Do I Have?
Both are AMG's 4.0L twin-turbo V8, but they are not the same engine. The M177 uses a wet sump oiling system and is found in sedan, SUV, and four-door coupe applications (C63, E63, GT63, GLC63, GLE63). The M178 uses a dry sump system and is exclusive to the two-door AMG GT sports car (GT, GTS, GTR, GT R Pro). They share the same bore and stroke but differ in block casting, oil system, and accessory fitment.
Read more: M177 vs M178 — What's the Difference?
Forged Internals — Built for Big Boost
The stock M177 uses cast pistons and powder-metal rods that were designed for factory boost levels. Our forged rotating assembly — billet crankshaft, 4340 H-beam rods, forged pistons with coated skirts — handles the cylinder pressures that come with upgraded turbochargers, methanol injection, and aggressive ECU calibration. Every assembly is balanced and blueprinted to race tolerances.
Build Process
Every M177 crate engine is assembled in-house at YPG Motorsport in Kuwait. Block inspection, honing, and sleeving as needed. Bearing clearances set to our race program. Rotating assembly balanced as a unit. CNC-ported heads with upgraded valvetrain. Fresh fasteners throughout, torqued to spec.
Build time is 7–21 days. Shipped via FedEx or DHL directly to your door, worldwide.
M177 Crate Engine vs Short Block vs Ported Heads
- M177 Short Block — Forged bottom end only. You supply heads and accessories.
- M177 Ported Heads — CNC-ported heads with upgraded valvetrain. Bolt onto your existing short block.
- M177 Crate Engine — Complete long block. Everything included. Ready to install.
Full comparison: Short Block vs Long Block vs Crate Engine — What's the Difference?
How to Order
Contact us at sales@ypgmotorsport.com or order directly through our store.
Browse all AMG Engine Builds or explore the full M177 Engine Builds collection.
Frequently Asked Questions
What vehicles use the M177 engine?
The M177 4.0L twin-turbo V8 powers the Mercedes-AMG C63 (W205), E63 (W213), AMG GT 63, GLC63, GLE63, GLS63, and S63.
Do I need to send a core?
No. No core exchange required.
How much power can the M177 crate engine handle?
Our forged M177 crate engines are capable of 1,500 HP+ with upgraded turbochargers and supporting modifications.
Does the crate engine include turbochargers?
No. The crate engine is the long block only. Turbochargers, intake, exhaust manifolds, and accessories are not included. We can supply upgraded turbo kits separately — contact us for options.
What is the difference between M177 and M178?
Both are 4.0L twin-turbo V8s. The M177 is wet sump (sedans, SUVs, GT 63) and the M178 is dry sump (AMG GT two-door). Different block castings and oil systems.